<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>计算属性的get和set方法</title>
</head>

<body>
    <div id="app">
        <h2>{{firstName+' '+lastName}}</h2>

        <h2>{{firstName}} {{lastName}}</h2>

        <!-- 使用计算属性 -->
        <h2>{{fullName}}</h2>
    </div>
    <!-- 计算属性根据缓存来更新页面,这样可以提升页面性能 -->
    <script src="../vue/vue.js"></script>
    <script>
        const app = new Vue({
            el: '#app',
            data: {
                firstName: 'spa',
                lastName: 'll'
            },
            computed: {
                fullName:{
                    get: function () {
                        return this.firstName + ' ' + this.lastName;
                    }
                }
            }
        });
    </script>
</body>

</html>